Integrated exhaust tower system for waste gas treatment

Abstract

The invention belongs to the technical field of industrial waste gas purification devices, and discloses an integrated waste gas treatment exhaust tower system. According to the system, a cyclone filter, spray towers, a gas disturbance spray mechanism, a liquid conveying mechanism and other parts are integrated through a mounting frame, and waste gas is subjected to dust pre-removal through the cyclone filter and then is shunted to the two groups of spray towers through a bent pipe and a four-way pipe. The liquid conveying mechanism conveys spraying liquid into the spraying tower, the motor drives the bevel gear-synchronous wheel linkage structure to drive the annular pipe, the atomizing nozzles, the fan blades and the turbulent flow rods to synchronously run, and integrated cooperation of spraying, turbulent flow and waste gas pushing is achieved. The system is provided with the liquid collecting box to realize spray liquid circulation, and the upper part of the spray tower can be butted with the deep purification device, so that the problems of easy blockage, insufficient gas-liquid contact and high energy consumption of the traditional equipment are effectively solved, the waste gas purification efficiency is improved, and the occupied space is saved.

Description

Technical Field

[0001] This invention relates to the field of industrial waste gas purification devices, specifically an integrated waste gas treatment exhaust tower system. Background Technology

[0002] In the aluminum ingot smelting industry, melting furnaces, refining furnaces, holding furnaces and other reaction furnaces continuously generate high-temperature fluorine-containing waste gas, alumina dust, asphalt fumes and volatile organic compound mixed pollutants during the smelting, refining and casting processes. These waste gases are characterized by high temperature, strong corrosiveness, large dust particle size range and complex pollutant composition. Direct emission will pollute the atmospheric environment and endanger the health of workshop operators, and must be purified and treated in accordance with relevant standards.

[0003] Existing waste gas treatment towers, such as the one with announcement number CN216418825U, can only achieve basic spraying and adsorption functions of a single tower body. When faced with a large amount of alumina dust in aluminum ingot waste gas, it is easy to cause rapid blockage of the adsorption layer and packing layer, resulting in frequent equipment shutdowns for maintenance and low operation and maintenance efficiency. The power and disturbance structure only relies on flow equalization fans to achieve initial distribution of waste gas, without active pushing and disturbance enhancement mechanisms. When the waste gas rises naturally, airflow short-circuiting and insufficient gas-liquid contact are prone to occur. The neutralization efficiency and fine dust capture rate for high-temperature fluorine-containing waste gas are difficult to meet the standards, and it cannot offset the airflow resistance brought by the packing layer, requiring high-power induced draft fans, resulting in high energy consumption. The spray structure is a fixed design, and the static arrangement of the spray pipes can only spray in one direction, with a limited contact area with the waste gas. It cannot adapt to the high temperature and complex composition characteristics of aluminum ingot waste gas, and its deep purification capacity for trace amounts of hydrogen fluoride, asphalt fumes, and volatile organic compounds is insufficient. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated exhaust gas treatment tower system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An integrated exhaust gas treatment tower system includes: an installation frame, on both sides of which cyclone filters are fixedly installed; bends are connected to the upper surfaces of the outlets of the two sets of cyclone filters; a four-way pipe is connected between the two sets of bends; the other two sets of pipes of the four-way pipe are respectively connected to the air inlet of the lower side wall of the spray tower; two sets of spray towers are fixedly installed at both ends of the inner side of the installation frame and located between the two sets of cyclone filters; a gas disturbance spraying mechanism is rotatably installed in each set of spray towers; the liquid inlet of each set of gas disturbance spraying mechanisms is connected to the liquid outlet of a liquid delivery mechanism; and the liquid delivery mechanism is fixedly installed at one end of the outer surface of the spray tower.

[0006] The above-mentioned integrated exhaust gas treatment tower system includes: a first tee pipe rotatably installed between the upper surfaces of the two sets of spray towers; and a flange fixedly installed on the outer surface of the remaining set of pipe openings of the first tee pipe. The flange is used to connect with a deep purification device to achieve deep defluorination, asphalt fumes and volatile organic compound purification treatment. An insert plate is fixedly installed on the outer surface of the chip discharge port on the lower surface of the cyclone filter. The insert plate can be inserted into the insertion frame. The insertion frame is connected to the upper surface of the collection cylinder. The collection cylinder can be pushed and inserted into the mounting frame and connected to the lower surface of the cyclone filter.

[0007] In the aforementioned integrated exhaust gas treatment system, one end of the outer surface of each of the two sets of spray towers is connected to a liquid collection tank, one end of the liquid collection tank is connected to a ball valve, and the other end of the liquid collection tank is connected to the inlet of the liquid delivery mechanism.

[0008] The aforementioned integrated exhaust gas treatment tower system includes: the liquid delivery mechanism comprising two sets of water pumps, each set of water pumps being fixedly installed at one end of the corresponding liquid collection tank of the two sets of spray towers; the inlets of the two sets of water pumps being connected to the corresponding liquid collection tanks; and the upper surfaces of the outlets of the two sets of water pumps being connected to and installed with second three-way pipes; the remaining two ends of the second three-way pipes being sealed and penetrating into the spray tower, and their ends being connected to and installed with a first U-shaped ring pipe and a second U-shaped ring pipe, respectively.

[0009] In the aforementioned integrated exhaust gas treatment system, the first U-shaped ring pipe and the second U-shaped ring pipe are respectively fixedly installed at the upper and lower ends inside the spray tower, and the gas disturbance spraying mechanism is rotatably connected inside both the first U-shaped ring pipe and the second U-shaped ring pipe.

[0010] The aforementioned integrated exhaust gas treatment tower system includes a gas disturbance spray mechanism comprising a first U-shaped ring pipe and a second U-shaped ring pipe. The first U-shaped ring pipe and the second U-shaped ring pipe are rotatably installed inside the first U-shaped ring pipe and the second U-shaped ring pipe and are interconnected. A multi-shaped pipe is connected and installed on the inner ring surface of both the first U-shaped ring pipe and the second U-shaped ring pipe. Multiple sets of atomizing nozzles are connected and installed on the lower surface of the multi-shaped pipe.

[0011] In the aforementioned integrated exhaust gas treatment tower system, a constricted cylinder is connected to the upper surface of the first U-shaped annular pipe, and a fan blade is fixedly installed inside the constricted cylinder. The fan blade rotates synchronously with the first U-shaped annular pipe to apply an upward adsorption force and a pushing force to the rising exhaust gas in the spray tower, so as to accelerate the exhaust gas flow rate and enhance the gas-liquid two-phase turbulent mixing effect.

[0012] In the aforementioned integrated exhaust gas treatment tower system, the lower surface of the second U-shaped annular pipe is fixedly equipped with multiple sets of baffles in an equidistant ring shape.

[0013] In the aforementioned integrated exhaust gas treatment tower system, bevel gear rings are fixedly installed on the lower surface of the first U-shaped annular pipe and the upper surface of the second U-shaped annular pipe. The two sets of bevel gear rings mesh with the first bevel gear and the second bevel gear, respectively. The first bevel gear and the second bevel gear are rotatably installed at the upper and lower ends of the spray tower through a shaft fixed at one end and located between the first U-shaped annular pipe and the second U-shaped annular pipe.

[0014] In the aforementioned integrated exhaust gas treatment tower system: both the first bevel gear and the second bevel gear are rotatably extended through the shafts to the outer surface of the spray tower. One end of each of the two sets of shafts extending through the shafts is fixedly fitted with a first synchronous pulley and a second synchronous pulley. A synchronous belt is fitted onto the outer surface of the first and second synchronous pulleys. A second set of synchronous belts is fitted onto the outer surface of the second synchronous pulley corresponding to the lower second bevel gear. The other end of the second set of synchronous belts is fitted onto the outer surface of a third synchronous pulley. The third synchronous pulley is fixedly mounted on the outer surface of the motor's output shaft. The motor is fixedly mounted on one end of a mounting plate, and the output shaft rotatably extends through the mounting plate. The mounting plate is fixedly mounted between the outer surfaces of the two sets of spray towers.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The installation frame integrates components such as cyclone filters, two sets of spray towers, collection cylinders and liquid delivery mechanisms, reducing long-distance pipeline connections of traditional decentralized equipment, saving plant space, reducing the risk of exhaust gas leakage, and adapting to the centralized treatment needs of multiple reactors.

[0016] 2. The cyclone filter pre-treats the exhaust gas, separating most of the alumina dust. Combined with the centralized collection design of the collection cylinder, it reduces the probability of clogging of the internal components of the subsequent spray tower, reduces the frequency of equipment downtime for maintenance, and improves operation and maintenance efficiency.

[0017] 3. The gas disturbance spraying mechanism adopts a combination design of a first U-shaped ring pipe, a second U-shaped ring pipe, a multi-shaped pipe, and an atomizing nozzle. Combined with rotational motion, it achieves full coverage of the spray liquid without dead angles, increases the gas-liquid contact area and contact uniformity, and improves the neutralization and capture effect of pollutants. The fan blades and the induced draft fan form a dual-power cooperation, reducing the airflow resistance of the system and reducing the energy consumption of the fan. The turbulence bar breaks the laminar flow state of the airflow, avoids airflow short circuit, and further enhances the gas-liquid mixing effect.

[0018] 4. The motor drives the upper and lower sets of U-shaped ring pipes and auxiliary components to operate synchronously through the bevel gear-synchronous pulley linkage structure, realizing the integrated and coordinated functions of spraying, turbulence and exhaust gas pushing. It eliminates the need for multiple separate drive mechanisms, simplifies the equipment structure, improves operational stability, and reduces manufacturing costs and maintenance difficulty.

[0019] 5. The collection tank works in conjunction with the water pump to achieve the recycling of the spray liquid, reducing the consumption of the spray liquid. The ball valve at one end of the collection tank facilitates the control of spray liquid discharge and replacement, ensuring the quality of the spray liquid and ensuring stable purification effect.

[0020] 6. The first tee pipe can be rotated to adjust the angle, and its flange structure facilitates connection with different specifications of deep purification devices, expanding the purification range of the equipment and ensuring that the exhaust gas meets the emission standards after multi-stage treatment, adapting to the complex purification needs of aluminum ingot exhaust gas. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the socket frame and the insert plate of the present invention; Figure 3 This is a schematic diagram of the mounting plate and liquid collection tank of the present invention; Figure 4 This is a schematic diagram of the structure of the first tee pipe of the present invention; Figure 5 This is a schematic diagram of the structure of the first and second bevel gears meshing with the bevel gear ring of the present invention; Figure 6 This is a schematic diagram of the gas disturbance spray mechanism and the liquid delivery mechanism of the present invention.

[0022] In the diagram: 1. Mounting frame; 101. Cyclone filter; 102. Bend; 103. Spray tower; 104. Collection cylinder; 105. First tee pipe; 106. Four-way pipe; 107. Liquid collection tank; 108. Inlet frame; 109. Insert plate; 110. Mounting plate; 2. Gas disturbance spraying mechanism; 201. First bevel gear; 202. Second bevel gear; 203. First synchronous pulley; 204. Second synchronous pulley; 205. Fan blade; 206. Narrowing cylinder; 207. Conical gear ring; 208. U-shaped tube; 209. Second U-shaped ring tube; 210. First U-shaped ring tube; 211. Baffle rod; 212. Motor; 213. Third synchronous pulley; 3. Infusion mechanism; 301. Water pump; 302. Second tee tube; 303. First U-shaped ring tube; 304. Second U-shaped ring tube. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-6 This embodiment provides an integrated exhaust gas treatment tower system, including: an installation frame 1, with cyclone filters 101 fixedly installed on both sides of the installation frame 1, and bends 102 connected to the upper surfaces of the outlets of the two sets of cyclone filters 101, with a four-way pipe 106 connected between the two sets of bends 102, and the other two sets of pipes of the four-way pipe 106 respectively connected to the air inlet of the lower side wall of the spray tower 103, with the two sets of spray towers 103 fixedly installed at both ends of the inner side of the installation frame 1 and located between the two sets of cyclone filters 101, and a gas disturbance spraying mechanism 2 rotatably installed in each of the two sets of spray towers 103, with the liquid inlet of the two sets of gas disturbance spraying mechanisms 2 connected to the liquid outlet of the liquid delivery mechanism 3, and the liquid delivery mechanism 3 fixedly installed at one end of the outer surface of the spray tower 103.

[0025] By adopting the above technical solution, the cyclone filter 101 and the spray tower 103 are integrated by the installation frame 1, which reduces the pipeline connection of decentralized equipment, saves space and reduces the probability of exhaust gas leakage; the cyclone filter 101 pre-treats the exhaust gas, separates some dust, and reduces the risk of blockage of the internal components of the subsequent spray tower 103; the gas disturbance spraying mechanism 2 and the liquid delivery mechanism 3 work together to achieve effective contact between the spray liquid and the exhaust gas, and improve the exhaust gas purification effect; the two sets of spray towers 103 are arranged in parallel to improve the exhaust gas treatment efficiency and adapt to the exhaust gas emission requirements under different working conditions.

[0026] Specifically, in this embodiment: a first tee pipe 105 is rotatably installed between the upper surfaces of the two sets of spray towers 103, and a flange is fixedly installed on the outer surface of the remaining set of pipe openings of the first tee pipe 105. The flange is used to connect with the deep purification device to achieve deep defluorination, asphalt fumes and volatile organic compound purification treatment. A plate 109 is fixedly installed on the outer surface of the chip discharge port on the lower surface of the cyclone filter 101. The plate 109 can be inserted into the insertion frame 108. The insertion frame 108 is connected to the upper surface of the collection cylinder 104. The collection cylinder 104 can be pushed and inserted into the mounting frame 1 and connected to the lower surface of the cyclone filter 101.

[0027] Using the above technical solution, the flange structure of the first tee pipe 105 facilitates connection with the deep purification device, further purifying the exhaust gas after spraying and expanding the purification range of the equipment; the insert plate 109 cooperates with the socket frame 108 to realize convenient loading and unloading of the collection cylinder 104 and the cyclone filter 101, the collection cylinder 104 collects dust in a concentrated manner, which is convenient for cleaning and transportation and reduces the difficulty of operation and maintenance; the first tee pipe 105 can be rotatably set to improve the compatibility with deep purification devices of different specifications and enhance the versatility of the equipment.

[0028] Specifically, in this embodiment: A collection tank 107 is connected to one end of the outer surface of each of the two sets of spray towers 103. A ball valve is connected to one end of the collection tank 107, and the other end of the collection tank 107 is connected to the inlet of the delivery mechanism 3. The collection tank 107 collects the liquid after spraying, realizing the recycling of the spray liquid and reducing its consumption. The ball valve controls the discharge and replacement of the liquid in the collection tank 107, facilitating the maintenance of the spray liquid quality and ensuring the purification effect. The collection tank 107 provides a stable liquid source for the delivery mechanism 3, ensuring that the delivery mechanism 3 continuously supplies spray liquid to the gas-turbulent spray mechanism 2, guaranteeing continuous operation of the equipment.

[0029] Specifically, in this embodiment: the infusion mechanism 3 includes two sets of water pumps 301. The two sets of water pumps 301 are respectively fixedly installed at one end of the corresponding collection tanks 107 of the two sets of spray towers 103. The inlets of the two sets of water pumps 301 are respectively connected to the corresponding collection tanks 107. The upper surface of the outlet of the two sets of water pumps 301 is connected to a second three-way pipe 302. The remaining two pipe openings of the second three-way pipe 302 are sealed and penetrate into the spray tower 103, and their ends are respectively connected to a first U-shaped ring pipe 303 and a second U-shaped ring pipe 304. Two sets of water pumps 301 correspond to two sets of spray towers 103 respectively, realizing independent supply and control of spray liquid to adapt to different spraying needs; the second three-way pipe 302 diverts the spray liquid delivered by the water pump 301 to the first U-shaped ring pipe 303 and the second U-shaped ring pipe 304 to realize the stratified supply of spray liquid; the first U-shaped ring pipe 303 and the second U-shaped ring pipe 304 are sealed through the spray tower 103 to ensure the sealing of the spray liquid delivery and avoid leakage that would affect the operation of the equipment and the purification effect.

[0030] Specifically, in this embodiment: the first U-shaped annular pipe 303 and the second U-shaped annular pipe 304 are respectively fixedly installed at the upper and lower ends inside the spray tower 103. A gas disturbance spraying mechanism 2 is rotatably connected to both the first U-shaped annular pipe 303 and the second U-shaped annular pipe 304. The vertical distribution of the first U-shaped annular pipe 303 and the second U-shaped annular pipe 304 provides a layered installation foundation for the gas disturbance spraying mechanism 2, enabling the spray liquid to be sprayed in layers. The gas disturbance spraying mechanism 2 is rotatably connected to the U-shaped annular pipes, ensuring stable delivery of the spray liquid without hindering the rotation of the gas disturbance spraying mechanism 2, thus providing structural support for the coordinated operation of spraying and disturbance.

[0031] Specifically, in this embodiment: the gas disturbance spray mechanism 2 includes a first U-shaped ring pipe 210 and a second U-shaped ring pipe 209. The first U-shaped ring pipe 210 and the second U-shaped ring pipe 209 are respectively rotatably installed in the first U-shaped ring pipe 303 and the second U-shaped ring pipe 304 and are interconnected. A multi-shaped pipe 208 is connected and installed on the inner ring surface of the first U-shaped ring pipe 210 and the second U-shaped ring pipe 209. A plurality of atomizing nozzles are connected and installed on the lower surface of the multi-shaped pipe 208. The first U-shaped ring pipe 210 and the second U-shaped ring pipe 209 achieve uniform distribution of the spray liquid; the multi-shaped pipe 208 expands the spray coverage area, and multiple sets of atomizing nozzles atomize the spray liquid, increasing the gas-liquid contact area, improving the mixing uniformity of the spray liquid and exhaust gas, and improving the pollutant capture and neutralization effect; the first U-shaped ring pipe 210 and the second U-shaped ring pipe 209 are interconnected to ensure the consistency of the spray liquid supply in the upper and lower spray structures.

[0032] Specifically, in this embodiment: a constricted cylinder 206 is connected and installed on the upper surface of the first U-shaped annular pipe 210. A fan blade 205 is fixedly installed inside the constricted cylinder 206. The fan blade 205 rotates synchronously with the first U-shaped annular pipe 210 to apply an upward adsorption and pushing force to the rising exhaust gas in the spray tower 103, thereby accelerating the exhaust gas flow rate and enhancing the turbulent mixing effect of the gas and liquid phases. The fan blade 205 rotates synchronously with the first U-shaped annular pipe 210, applying an upward force to the rising exhaust gas, accelerating the exhaust gas flow, and reducing airflow resistance; the constricted cylinder 206 guides the airflow, enhances the pushing effect of the fan blade 205, promotes the turbulent mixing of the gas and liquid phases, prolongs the gas-liquid contact time, and further improves the purification efficiency.

[0033] Specifically, in this embodiment: multiple sets of baffle rods 211 are fixedly installed in an equidistant ring on the lower surface of the second U-shaped annular tube 209. The baffle rods 211 rotate with the second U-shaped annular tube 209, dispersing the rising exhaust gas, breaking the laminar flow state of the airflow, and avoiding airflow short-circuiting; the equidistant ring distribution of the baffle rods 211 ensures the uniformity of airflow disturbance, enhances gas-liquid turbulent mixing, and improves the capture effect of the spray liquid on fine dust and pollutants.

[0034] Specifically, in this embodiment: bevel gear rings 207 are fixedly installed on the lower surface of the first U-shaped annular tube 210 and the upper surface of the second U-shaped annular tube 209. The two sets of bevel gear rings 207 mesh with the first bevel gear 201 and the second bevel gear 202, respectively. The first bevel gear 201 and the second bevel gear 202 are rotatably installed at the upper and lower ends of the spray tower 103 through a shaft fixed at one end, and are located between the first U-shaped annular tube 210 and the second U-shaped annular tube 209. The meshing of the bevel gear rings 207 with the bevel gears realizes stable power transmission and drives the U-shaped annular tubes to rotate; the bevel gears are installed in the spray tower 103 through the shaft, providing stable support for power transmission. The shaft is located between the two sets of U-shaped annular tubes, optimizing the spatial layout, ensuring a compact transmission structure, and realizing synchronous rotation of the upper and lower sets of U-shaped annular tubes.

[0035] Specifically, in this embodiment: the first bevel gear 201 and the second bevel gear 202 both rotate through the shaft seal to the outer surface of the spray tower 103. One end of each of the two sets of shafts that rotate through is fixedly mounted with a first synchronous pulley 203 and a second synchronous pulley 204. The outer surfaces of the first synchronous pulley 203 and the second synchronous pulley 204 are fitted with synchronous belts. The outer surface of the second synchronous pulley 204 corresponding to the second bevel gear 202 at the lower end is fitted with a second set of synchronous belts. The other end of the second set of synchronous belts is fitted onto the outer surface of the third synchronous pulley 213. The third synchronous pulley 213 is fixedly mounted on the outer surface of the output shaft of the motor 212. The motor 212 is fixedly mounted on one end of the mounting plate 110 and its output shaft rotates through the mounting plate 110. The mounting plate 110 is fixedly mounted between the outer surfaces of the two sets of spray towers 103. The synchronous pulley and synchronous belt work together to achieve precise power transmission of motor 212, driving two sets of bevel gears to rotate synchronously, which in turn drives the upper and lower sets of U-shaped ring pipes and auxiliary components to operate in coordination; the shaft seal penetrates the spray tower 103 to ensure the equipment's airtightness; the mounting plate 110 provides a stable mounting foundation for motor 212 and is installed between the two sets of spray towers 103, optimizing the structural layout, driving multiple sets of components with a single motor, simplifying the drive structure, and reducing equipment manufacturing costs and maintenance difficulty.

[0036] Working principle: The mixed exhaust gas generated by the aluminum ingot reactor is first introduced into the cyclone filters 101 on both sides of the installation frame 1. Through the centrifugal separation action of the cyclone filters 101, most of the alumina dust in the exhaust gas is separated, and the dust falls into the collection cylinder 104 connected to the lower surface for centralized collection. The exhaust gas after cyclone pre-dust removal is discharged through the bend pipe 102 on the upper surface of the outlet of the cyclone filter 101. The two sets of bend pipes 102 converge the exhaust gas into the four-way pipe 106, and then the four-way pipe 106 evenly distributes it to the air inlet on the lower side wall of the two sets of spray towers 103. The exhaust gas rises slowly upward from the bottom of the spray tower 103.

[0037] At the same time, the liquid delivery mechanism 3 fixed to one end of the outer surface of the spray tower 103 is started, and the two sets of water pumps 301 respectively draw alkaline spray liquid from the corresponding collection tank 107. After being pressurized, the liquid is diverted through the second three-way pipe 302 to the first U-shaped ring pipe 303 and the second U-shaped ring pipe 304 that are sealed and penetrate into the spray tower 103. Simultaneously, the motor 212 installed on the mounting plate 110 between the outer surfaces of the two sets of spray towers 103 starts. The third synchronous pulley 213 on the output shaft of the motor 212 drives the second synchronous pulley 204 on the second bevel gear 202 to rotate through the second set of synchronous belts. The second synchronous pulley 204 drives the first synchronous pulley 203 and the first bevel gear 201 to rotate synchronously through the first set of synchronous belts. The two sets of bevel gears mesh with the bevel gear rings 207 on the lower surface of the first U-shaped ring pipe 210 and the upper surface of the second U-shaped ring pipe 209, respectively, thereby driving the first U-shaped ring pipe 210 and the second U-shaped ring pipe 209, which are respectively installed in the first U-shaped ring pipe 303 and the second U-shaped ring pipe 304, to rotate synchronously.

[0038] When the first U-shaped annular pipe 210 and the second U-shaped annular pipe 209 rotate, the U-shaped pipe 208 connected to their inner annular surfaces and the multiple sets of atomizing nozzles on their lower surfaces rotate accordingly, uniformly atomizing and spraying the spray liquid transported by the first U-shaped annular pipe 303 and the second U-shaped annular pipe 304, achieving full coverage spraying in the upper and lower layers of the spray tower 103. The fan blades 205 in the constricted cylinder 206 connected to the upper surface of the first U-shaped annular pipe 210 rotate synchronously with the U-shaped annular pipe, applying upward adsorption and pushing forces to the rising exhaust gas, accelerating the exhaust gas flow rate; the multiple sets of equidistant annular fixed baffles 211 on the lower surface of the second U-shaped annular pipe 209 rotate and disperse the rising airflow, enhancing the turbulent mixing effect of the gas and liquid two phases and prolonging the gas-liquid contact time. The exhaust gas treated by the spray tower 103 rises to the top of the tower body, and flows through the first tee pipe 105 between the upper surfaces of the two sets of spray towers 103. Then it is introduced into the deep purification device through the flange interface of the first tee pipe 105 to complete the deep purification of residual pollutants.

[0039] How to use: 1. Equipment preparation: Push the collection cylinder 104 into the mounting frame 1, and insert the socket frame 108 into the insertion plate 109 on the lower surface of the cyclone filter 101 to ensure that the dust collection channel is sealed; inject sufficient alkaline spray liquid into the collection tanks 107 corresponding to the two sets of spray towers 103, and close the ball valve at one end of the collection tank 107; connect the equipment to the deep purification device through the flange of the first three-way pipe 105, and check the sealing of each pipe connection.

[0040] 2. Start-up and operation: First, start the motor 212. After the first U-shaped ring pipe 210, the second U-shaped ring pipe 209 and the auxiliary components have rotated stably, start the two sets of water pumps 301 to ensure that the spray liquid is stably delivered to the atomizing nozzle and forms a uniform spray. Then, introduce the exhaust gas generated by the aluminum ingot reactor into the cyclone filter 101 in the installation frame 1, open the exhaust gas conveying channel, and the exhaust gas completes the purification treatment according to the preset process.

[0041] 3. Operation and Maintenance: During operation, regularly check the liquid level and quality of the spray liquid in the collection tank 107. When the concentration of the spray liquid is insufficient or there are too many impurities, open the ball valve to drain the waste liquid and refill with new alkaline spray liquid. Regularly remove the collection cylinder 104 and clean the alumina dust collected inside. After cleaning, reinstall the collection cylinder 104. Check the tension of the timing belt, the meshing status of the bevel gears, and the sealing of the shaft. Address any loosening, wear, or leakage issues promptly.

[0042] 4. Shutdown procedure: First, close the exhaust gas delivery channel and stop supplying exhaust gas into the equipment; continue running water pump 301 and motor 212 for a period of time to flush the inside of the spray tower 103; then turn off water pump 301, and turn off motor 212 after the spraying has completely stopped; finally, open the ball valve of the collection tank 107 to drain the remaining spray liquid inside, and complete the equipment shutdown.

[0043] In summary, this integrated exhaust gas treatment tower system has the following beneficial effects: 1. The installation frame 1 integrates components such as cyclone filter 101, two sets of spray towers 103, collection cylinder 104 and liquid delivery mechanism 3, which reduces the long-distance pipeline connection of traditional decentralized equipment, saves plant space, reduces the risk of exhaust gas leakage, and is suitable for centralized treatment of multiple reactors.

[0044] 2. The cyclone filter 101 pre-treats the exhaust gas, separating most of the alumina dust. Combined with the centralized collection design of the collection cylinder 104, it reduces the probability of clogging of the internal components of the subsequent spray tower 103, reduces the frequency of equipment downtime for maintenance, and improves operation and maintenance efficiency.

[0045] 3. The gas disturbance spray mechanism 2 adopts a combination design of the first U-shaped ring pipe 210, the second U-shaped ring pipe 209, the shaped pipe 208, and the atomizing nozzle. Combined with the rotational motion, it achieves full coverage of the spray liquid and spraying without dead angles, increases the gas-liquid contact area and contact uniformity, and improves the neutralization and capture effect of pollutants. The fan blade 205 and the induced draft fan form a dual-power cooperation, reducing the airflow resistance of the system and reducing the energy consumption of the fan. The turbulence bar 211 breaks the laminar flow state of the airflow, avoids airflow short circuit, and further enhances the gas-liquid mixing effect.

[0046] 4. The motor 212 drives the upper and lower sets of U-shaped ring pipes and auxiliary components to operate synchronously through the bevel gear-synchronous pulley linkage structure, realizing the integrated coordination of spraying, turbulence and exhaust gas pushing functions. It eliminates the need for multiple separate drive mechanisms, simplifies the equipment structure, improves operational stability, and reduces manufacturing costs and maintenance difficulty.

[0047] 5. The collection tank 107 works in conjunction with the water pump 301 to achieve the recycling of the spray liquid, reducing the consumption of the spray liquid. The ball valve at one end of the collection tank 107 facilitates the control of the discharge and replacement of the spray liquid, ensuring the quality of the spray liquid and ensuring stable purification effect.

[0048] 6. The first tee pipe 105 is rotatable and adjustable. Its flange structure facilitates connection with different specifications of deep purification devices, expands the purification range of the equipment, ensures that the exhaust gas meets the emission standards after multi-stage treatment, and adapts to the purification needs of aluminum ingot exhaust gas with complex composition.

[0049] All parts not described in this invention are the same as or can be implemented using existing technology. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated exhaust gas treatment system, characterized in that, include: The mounting frame (1) has cyclone filters (101) fixedly installed on both sides. The upper surfaces of the air outlets of the two sets of cyclone filters (101) are connected to bends (102). A four-way pipe (106) is connected between the two sets of bends (102). The other two sets of pipes of the four-way pipe (106) are respectively connected to the air inlet of the lower side wall of the spray tower (103). The two sets of spray towers (103) are fixedly installed at both ends of the inner side of the mounting frame (1) and located between the two sets of cyclone filters (101). A gas disturbance spraying mechanism (2) is rotatably installed in the two sets of spray towers (103). The liquid inlet of the two sets of gas disturbance spraying mechanisms (2) is connected to the liquid outlet of the liquid delivery mechanism (3). The liquid delivery mechanism (3) is fixedly installed at one end of the outer surface of the spray tower (103).

2. The integrated exhaust gas treatment tower system according to claim 1, characterized in that: A first tee pipe (105) is rotatably installed between the upper surfaces of the two sets of spray towers (103). A flange is fixedly installed on the outer surface of the remaining set of pipe openings of the first tee pipe (105). The flange is used to connect with the deep purification device to achieve deep defluorination, asphalt fumes and volatile organic compound purification treatment. A plug plate (109) is fixedly installed on the outer surface of the chip discharge port on the lower surface of the cyclone filter (101). The plug plate (109) can be inserted into the socket frame (108). The socket frame (108) is connected to the upper surface of the collection cylinder (104). The collection cylinder (104) can be pushed and inserted into the mounting frame (1) and connected to the lower surface of the cyclone filter (101).

3. The integrated exhaust gas treatment tower system according to claim 2, characterized in that: Both sets of spray towers (103) have a liquid collection tank (107) installed on one end of their outer surface. A ball valve is installed on one end of the liquid collection tank (107), and the other end of the liquid collection tank (107) is connected to the inlet of the liquid delivery mechanism (3).

4. The integrated exhaust gas treatment tower system according to claim 1, characterized in that: The infusion mechanism (3) includes two sets of water pumps (301). The two sets of water pumps (301) are respectively fixedly installed at one end of the liquid collection tank (107) corresponding to the two sets of spray towers (103). The inlet of the two sets of water pumps (301) is connected to the corresponding liquid collection tank (107). The upper surface of the outlet of the two sets of water pumps (301) is connected to a second three-way pipe (302). The remaining two sets of pipe openings of the second three-way pipe (302) are sealed and penetrate into the spray tower (103), and their ends are respectively connected to a first U-shaped ring pipe (303) and a second U-shaped ring pipe (304).

5. The integrated exhaust gas treatment tower system according to claim 4, characterized in that: The first U-shaped ring pipe (303) and the second U-shaped ring pipe (304) are respectively fixedly installed at the upper and lower ends of the spray tower (103). The gas disturbance spray mechanism (2) is rotatably connected inside both the first U-shaped ring pipe (303) and the second U-shaped ring pipe (304).

6. The integrated exhaust gas treatment tower system according to claim 1, characterized in that: The gas disturbance spray mechanism (2) includes a first U-shaped ring pipe (210) and a second U-shaped ring pipe (209). The first U-shaped ring pipe (210) and the second U-shaped ring pipe (209) are rotatably installed in the first U-shaped ring pipe (303) and the second U-shaped ring pipe (304) respectively and are interconnected. A multi-shaped pipe (208) is connected and installed on the inner ring surface of the first U-shaped ring pipe (210) and the second U-shaped ring pipe (209). A plurality of atomizing nozzles are connected and installed on the lower surface of the multi-shaped pipe (208).

7. The integrated exhaust gas treatment tower system according to claim 6, characterized in that: A constricted cylinder (206) is connected to the upper surface of the first U-shaped annular pipe (210). A fan blade (205) is fixedly installed inside the constricted cylinder (206). The fan blade (205) rotates synchronously with the first U-shaped annular pipe (210) to apply an upward adsorption force and a pushing force to the rising exhaust gas in the spray tower (103) to accelerate the exhaust gas flow rate and enhance the gas-liquid two-phase turbulent mixing effect.

8. The integrated exhaust gas treatment tower system according to claim 6, characterized in that: The lower surface of the second U-shaped annular tube (209) is fixedly equipped with multiple sets of baffle rods (211) in an equidistant annular shape.

9. An integrated exhaust gas treatment tower system according to claim 6, characterized in that: A bevel gear ring (207) is fixedly installed on the lower surface of the first U-shaped annular tube (210) and the upper surface of the second U-shaped annular tube (209). The two sets of bevel gear rings (207) mesh with the first bevel gear (201) and the second bevel gear (202) respectively. The first bevel gear (201) and the second bevel gear (202) are rotatably installed in the upper and lower ends of the spray tower (103) through a shaft fixed at one end and located between the first U-shaped annular tube (210) and the second U-shaped annular tube (209).

10. An integrated exhaust gas treatment tower system according to claim 9, characterized in that: The first bevel gear (201) and the second bevel gear (202) are both rotatably passed through the shaft to the outer surface of the spray tower (103). The first synchronous pulley (203) and the second synchronous pulley (204) are respectively fixedly installed at one end of the two sets of shafts that rotatably pass through. The outer surfaces of the first synchronous pulley (203) and the second synchronous pulley (204) are fitted with synchronous belts. The outer surface of the second synchronous pulley (204) corresponding to the second bevel gear (202) at the lower end is fitted with a second set of synchronous belts. The other end of the second set of synchronous belts is fitted on the outer surface of the third synchronous pulley (213). The third synchronous pulley (213) is fixedly installed on the outer surface of the output shaft of the motor (212). The motor (212) is fixedly installed on one end of the mounting plate (110) and the output shaft rotatably passes through the mounting plate (110). The mounting plate (110) is fixedly installed between the outer surfaces of the two sets of spray towers (103).

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